Surface Finishing Services at Zhonghui Die casting
Offering high-end quality surface finishing services!
Enhance your part’s aesthetics and functionality more efficiently!
At ZhongHui, we provide premium surface finishing services designed to elevate both the aesthetics and functionality of your parts. Our specialized finishing solutions enhance performance and appearance, ensuring your components meet the highest standards.
We offer expert finishing services for a variety of materials, including metal, composites, and plastics, transforming your prototypes or parts into high-quality, precision-engineered products. Trust us to bring your vision to life with exceptional craftsmanship and attention to detail.

Surface Finishes | Description | Services | Applicable Materials |
As Machined
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Standard Finish: Surface roughness of 3.2 μm (126 μin), removes sharp edges, and deburs parts cleanly. | Die casting, CNC machining, sheet metal fabrication | Metals, plastics |
Sand Blasting
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Blasting: Powerfully propels blast media against surfaces to remove coatings and impurities. | Die casting, CNC machining, sheet metal fabrication | Metals, plastics |
Tumbling
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Barrel or Vibratory Finishing: Utilizes abrasive processes to smooth and polish the surface of parts. | Die casting, CNC machining, sheet metal fabrication | Metals, plastics, glass |
Electropolish
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Electropolishing: Electrochemical process that smooths, polishes, and deburrs metal surfaces to a high gloss. | Die casting, CNC machining | Stainless steel, copper, aluminum |
Heat Treatment
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Heat Treating: Alters the physical (and sometimes chemical) properties of a material to achieve desired mechanical properties. | Die casting, CNC machining | Metals |
Alodine
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Chemical Treatment: Provides corrosion protection and surface preparation for paint adhesion. | Die casting, CNC machining, sheet metal fabrication | Aluminum, aerospace alloys |
Anodizing
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Anodizing: Electrochemical process that forms a durable, corrosion-resistant oxide layer on the surface of metals. | Die casting, CNC machining, sheet metal fabrication | Aluminum |
Teflon Coating
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PTFE Coating: Applies a protective layer of PTFE to reduce friction and enhance corrosion resistance. | Die casting, CNC machining, sheet metal fabrication, injection molding | Metals, plastics |
Black Oxidize
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Black Oxide Coating: Chemical bath that creates a black oxide coating on metal to improve corrosion resistance. | Die casting, CNC machining, sheet metal fabrication | Steel, iron |
Electroless Plating
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Electroless Plating: Deposition of a metal coating on substrates using an autocatalytic chemical process. | Die casting, CNC machining, injection molding, 3D printing | Metals, plastics |
Electroplating
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Electroplating: Uses electric current to reduce dissolved metal cations to form a coherent metal coating. | Die casting, CNC machining, sheet metal fabrication | Metals |
Painting
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Painting: Application of paint for aesthetic improvements and protective coatings. | Die casting, CNC machining, sheet metal fabrication, injection molding, 3D printing | Metals, plastics, wood |
Passivation
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Passivation: Chemical treatment to enhance the corrosion resistance of metals by removing free iron from the surface. | CNC machining, sheet metal fabrication | Stainless steel, other corrosion-resistant alloys |
Powder Coating
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Powder Coating: Dry finishing process using powdered paint to provide a high-quality, durable finish. | CNC machining, sheet metal fabrication, injection molding | Metals, some plastics |
Electrophoresis
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E-Coating: Coating process using charged particles suspended in a solvent, typically for uniform finishes. | CNC machining, sheet metal fabrication | Metals, ceramics |
Brushed Finish
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Brushing: Mechanical polishing that produces a unidirectional satin finish. | CNC machining, sheet metal fabrication | Metals |
SPI Finish
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CNC Machining: Precision machining for creating parts with exact specifications. | Injection molding, 3D printing |
Achieve the Perfect Finish for Your Project
Your designs deserve excellence. Enhance durability and aesthetics with our versatile finishing options. Our surface finishing techniques cater to both functional and visual needs, tailored to material, color, texture, and budget requirements. Elevate your projects with precision and quality—choose our expert solutions today.
